DL 425.4-1991 Abolished Industry standards-Electricity

DL 425.4-1991 Determination of iron in industrial sodium hydroxide - Phenanthroline (Spectrophotometry)

Publish Date: 1991-10-04 Implement Date: 1992-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: DL 425.4-1991

Standard Type: Industry standards

Standard Status: Abolished

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 1991-10-04

Implement Date: 1992-04-01

Pages: 2 pages

Development Information

Pages: 2 pages

Same series standard

DL 425.1-1991 Test method for industrial sodium hydroxide DL 425.2-1991 The determination of the content of sodium hydroxide and sodium carbonate in industrial sodium hydroxide - titration method DL 425.3-1991 Determination of NaCl content in industrial sodium hydroxide - Mercury method DL 425.5-1991 Determination of the content of sodium hydroxide and sodium carbonate in industrial sodium hydroxide - volumetric method \nDL 425.6-1991 Determination of the sodium chloride content in industrial sodium hydroxide - silver nitrate volumetric method

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